0372-400Х (Edition in Ukrainian)
2071-0186 (Edition in English)
2071-0194 (in electronic form)
Abbreviated key title: Ukr. J. Phys.
Gaponova O.P.1, Kolosiuk A.G.2
1 1 Sumy State University
(2, Rimskii-Korsakov Str., Sumy 40007, Ukraine; e-mail: firstname.lastname@example.org)
2 Institute of Physics, Nat. Acad. of Sci. of Ukraine
(46, Prosp. Nauky, Kyiv 03680, Ukraine; e-mail: email@example.com)
Researches of Diffusion Processes in Powder Materials and their Role in Structure Formation
Section: Solid matter
Original Author's Text: Ukrainian
Abstract: The equation of Fick’s second law describing the diffusion in a porous powder body is solved in the framework of the Green’s function method. The proposed mathematical model allowed the influence of the temperature, deformation rate, and porosity of a material on the diffusion coefficient to be analyzed. The microstructure of copper-titanium specimens after the sintering and a plastic deformation is studied. The increase in the temperature, as well as in the rate and the degree of a deformation, is found to promote the alloy homogenization.
Key words: diffusion, plastic deformation, powder body, powder copper-titanium material.